Water Burst

You hurl a blob of water at a creature or object within range. The target must succeed on a Dexterity saving throw. On a failed save, the target takes 1d10 bludgeoning damage. 

Cantrip Upgrade. The damage increases by 1d10 when you reach levels 5 (2d10), 11 (3d10), and 17 (4d10).